Useful At Commands for Huawei Modem

Huawei is a leading brand all over the world among ZTE, Micromax, Sierra, Alcatel etc. Huawei keeps launching new modems in the market with some intervals with the help of network provider. Hence, we are updating here some cool Huawei modem AT commands which will help you to diagnosis the Huawei modem. If you have stuck somewhere then these at commands will be very helpful to you.

4. other AT-Commands

AT ^ CFUN = 1 : restart the modem
AT ^ CGMI : a modem manufacturer information (you will receive Huawei)
AT ^ CGMR : information about the firmware version
AT ^ CIMI : information about the IMSI number of the SIM card
AT ^ CGSN : information about IMEI modem
AT ^ HWVER : information about the version of the modem hardware
AT ^ CSQ : view the signal strength
AT ^ CMDL : get a list of all the commands AT + CGMM or the AT + GMM – ask for the name of the model AT + COPS – information about the current operator

AT ^ U2DIAG : The current mode.
AT ^ GETPORTMODE : a list of all devices in the modem
AT ^ VERSION? – Information about the version of the modem firmware
AT ^ CLAC in response to a list of supported commands

You can also choose the order of their priority, in descending order, for example: the AT ^ SYSCFGEX = “0302”, 3fffffff, 2,4,7fffffffffffffff ,, In this case, the modem will attempt to connect to the LTE network first, and then to the 3G network, but work 2G networks. or an option: aT ^ SYSCFGEX = “030201”, 3fffffff, 2,4,7fffffffffffffff ,, this is equivalent to AT ^ SYSCFGEX = “00”, 3fffffff, 2,4,7fffffffffffffff ,,

16 COMMENTS

Hi and thank you for the info above, I hope you can help with my problem: Do you have any idea on how to disable virtual CD-ROM on the Huawei E3531s – my router won’t recognize the modem, it just see it as usb disk. My E1552 works fine though, so I’m thinking that the probleme is that the E3531 is recognized as cd-rom first and then modem. I would have used putty and the AT^U2DIAG=0 command, but the modem doesn’t seem to have an COM port.

Hi I am using E3276 with Raspberry pi (Rasbian OS), my application is to connect to internet automatically thru sakis3g, i have written code to get connection automatically whenever the connection is down, which is working fine now. But the problem is, it continuously works for few days (2 days) and then the dongle is not getting connection to internet at all (it says ‘Failed to Connect’). The solution i tried which is working fine is, manually i remove the dongle from raspberry pi and then connecting it to laptop (Windows OS) and used to browse once in laptop and then connecting it to raspberry pi, then it works thru my automated code, that involved sakis3g. This scenario continuous as i said for few days and then…. I tried once a solution that passing AT+CFUN=1,1 (Modem Reset Command) at the instance of getting Failed to Connect Prompt. It was working. So i incorporated the same command in my code before getting connection thru sakis3g. It was also working. I was very hope that i have solved the issue. But again the problem comes with the same scenario. Pl help me to get out of this issue. Many Thanks.

hi, im from ecuador.. please help me, i cant activate 3G mode in a modem huawei E353S-2 just turn on de green light that mean 2G, i change the sim card and is the same thing. the modem in the manuals says it works on bands 850mhz but it seems that came blocked the 3g/4g mode

Hi am using Huawei E303h-1 Hi link I would like to switch it to project mode so that I can manage it to a normal modem. But Once I write http://192.168.8.1/html/switchProjectMode.html and search it get open to the home page. Regard